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Biology
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Can you explain the four levels of protein folding?

Proteins form from basic structures and fold into larger, more complex ones. They start as simple chains of amino acids, this is known as the primary structure of a protein. They then fold into secondary ...

CC
Answered by Caitlin C. Biology tutor
2386 Views

Compare and contrast animal and plant cells, giving 3 similarities and 3 differences. Answer can be given as an annotated diagram.

Similarities:Have a cell membraneHave a nucleusHave mitochondriaDifferences:Plant cell has a cell wallPlant cell has one big vacuolePlant cells have chloroplasts - those in the leaves

KU
Answered by Kipras U. Biology tutor
1390 Views

What is the difference between a saturated and an unsaturated? (2 marks)

A saturated lipid has no carbon double bonds in the R group of the fatty acid.An unsaturated lipid has one or more carbon double bonds in the R g...

LK
Answered by Lydie K. Biology tutor
2984 Views

Explain the process of mitosis.

Mitosis is a process that is normally explained in four stages - prophase, metaphase, anaphase and telophase. In prophase, the chromosomes condense and clump together in the middle of the...

ML
Answered by Megan L. Biology tutor
4088 Views

Describe the passage of blood through the left side of the heart. Include the names of the valves between the chambers.

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